French rare verge pocket watch with triple date Circa 1800

Silver open faced pocket watch probably from France
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A French extravagant and rare verge pocket watch with triple date and center seconds, circa 1800.
Silver case, gilt full plate movement and verge escapement. White enamel dial, subsidiary dials with golden surrounding, gold seconds register, 1/5 seconds, center seconds, decentralized time indication, date and week day indication, original hands, replaced seconds hand.
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Diameter: 54 mm
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Weight: 90 g
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Signed: AIM